I thought that this quote was particularly interesting, so being the curious guy that I am I wanted to actually see what Rousey's striking stats at UFC 190 were vs Fedor and other fighters.
Rousey vs Correia
Rousey 19/32 significant strikes, 59% accuracy
Correia 9/14 significant strikes, 64% accuracy
http://www.fightmetric.com/fight-details/60c62fb7bd17a8b3
Fedor Emelianenko, Career
51% strike accuracy
http://www.fightmetric.com/fighter-details/b8da6f5c80ae2d15
Maybe that's deceptive since Fedor grapples a lot so I thought I'd pull up the fights where he actually throws a significant number of strikes. Looking at the last 5 of Fedor's fights where he landed more than 15 strikes (a lot of them were less than 15 strikes)
Fedor vs Monson, 50/131, 38%,
http://www.fightmetric.com/fight-details/21c712a68a2d167e
Fedor vs Coleman, 19/24, 79%,
http://www.fightmetric.com/fight-details/172346850e7d24d6
Fedor vs Filipovich, 50/132, 37%,
http://www.fightmetric.com/fight-details/4c23c2a8ca4d9700
Fedor vs Kohsaka, 88/162, 41%,
http://www.fightmetric.com/fight-details/9661d43a374e5a60
Fedor vs Nogueira, 65/144, 45%,
http://www.fightmetric.com/fight-details/1b960c59351664c4
I thought maybe it's just Fedor so decided to look at the UFC's significant strike accuracy among the top fighters. Maybe it's just Rousey and Fedor.
So, I went to the UFC website and looked up the top 10 fighters in the UFC by Significant Strike accuracy. Here's what came up...
1 Alistair Overeem 74.52
2 Trevor Smith 63.68
3 Anderson Silva 63.22
4 Fabio Maldonado 59.36
5 Ben Saunders 59.07
6 Jimy Hettes 57.29
7 Cain Velasquez 57.24
8 Fabricio Werdum 56.91
9 Jessica Andrade 55.26
10 Kyle Noke 54.57
So, Rousey had 59% strike accuracy in UFC 190. It sure doesn't look like she missed a lot of strikes to me.
I think the most you can say is that Rousey got hit quite a bit and wasn't defending well. However, she sure didn't miss many of her strikes.
Rousey's still nowhere near elite, but in terms of her UFC 190 performance I don't think anyone can legitimately claim that she was missing significantly more than anyone else or that she can't hit with power.