Agreed. I think the first round of Ank vs Rakic will show us how it plays out, even if it goes to a decision.
Rakic has a well rounded game, he can both strike and grapple. I absolutely loved his headkick finish of Manuwa! He has some good leg kicks too which I hope he utilizes. Hoping for all the underdogs win!
To me the fatal flaw with Rakic is he is a slow-paced outside kickboxer that likes to use single strikes at a time. Yes, he is a tank that can wrestle/hold down guys with suspect TD and weak get-ups like Smith/Jan, but Ank isn't the guy to work that game on (though it is possible to overwhelm him and get him down like Krylov did).
Ultimately what is Ank's biggest flaw? He doesn't really take the initiative early, he's happy to fight a slow-paced outside kickboxing fight where his opponents exchange single techniques so he can get the timing/reads and start to check their kicks and then push forward and start building with pretty solid volume striking that gets more varied and layered as he gets more comfortable.
Outside of getting subbed like a moron in the last few seconds by Craig in a fight he was dominating until he dove into a triangle for seemingly no reason, the times he's looked the most shook were when just guys went after him i.e. Krylov going crazy with forward pressure trying to wrestle and throw reckless combos.
He absolutely smoked Cutelaba because of the skill/technique disparity that was the right approach from the wrong guy (doesn't have the skill to close distance with jabs/low-kicks/feints, just moves into range and when he throws it is single wild hooks to the head). Jan to me is the most proven kick-check in the UFC, took apart Izzy's game, so he was able to brutalize Ank at his own game early (was even kicking through his checks when he did start checking), but he himself also brutalized Rakic himself with low-kicks and checks in a similar style of fight to start.
So is Rakic the guy that is going to turn into a technical boxer-puncher that will pressure with layered attacks and ability to throw in combination/destroy Ank's legs? I just don't see it personally, that's why I want to see the Poatan fight so bad, it's kind of a perfect match-up - Poatan has the striking style to really put Ank in trouble by using technical pressure and range tools on top of the leg kicking advantage (Ank is pretty damn good at throwing and checking himself, but there are levels and Jan/Poatan are at the top at LHW) and Ank has the style if he is able to seize the initiative and put Poatan on the back foot of mixing in takedowns and then feinting to strike off them to potentially give Poatan fits.
And if Ank got him down he might do terrible things to him on the ground, just think of what Izzy was able to do the one time they went to the ground in the first fight, it was like 3+ minutes of control and a lot of ground work from a lanky MW kickboxer with a non-existent ground game. I know Poatan is getting better and all but he's in his late 30's and a kickboxer, he isn't going to ever be able to level-up anywhere even relatively close to Ank's level of technique and experience on the ground.
Sorry to go off on a tangent re: Ank vs. Poatan, I just think it's a highly under-rated fight that the UFC has done a good job into gaslighting fans into thinking they don't think they need to see because they want to protect their cash cow ultimately from what is truly a dangerous fight for him. They'd rather feed him one-dimensional strikers like Hill/Roundtree that will put on firefights that are likely to leave him the one standing.