With all due respect, TS, your question is retarded.
Yes, even right now in a time of less dominant champions, we currently have Jones, Stipe (who just came off his run and might have another), adesanya and usman looking dominant, khabib looking damn near unbeatable, cejudo easily if he hadn't retired, Nunes and shevchenko. Almost all current champions either already have 3 defenses or will likely get there. As usual, the only major sport to compare it to is boxing which has its highs and lows but dominant champions have been recurrent for over 100 years.