Good picks and i believe i can explain all three.
1) Bonnar got destroyed but not finished. This was very young Jones. Maybe even ore PEDs Joned or pre Jackson/Wink. Maybe someone can confirm. Either way this looked as good as Khabibs non finishes. Much better than say Khabib vs Tibau for a good comparison of young star vs solid vet.
2) Smith ... this was post USADA , post suspended multiple times Jones who I think all admit didnt look the same anymore. Still dominated but no finish. Ill give you this one.
3) first match back from from his first suspension and he did look .. slow. Jones only went for 5 takedowns. Landed 18 of 19 strikes on the ground. DC himself said it Jones looked slow and off. But of course Jones juiced up prior to UFC200 for DC and got caught. Match rescheduled for UFC214 where Jones looked amazing again but tested positive post match drug test.
So seems best i can do is say Jones off the Juice isnt as deadly ... obviously. Lol