Jenkins said the knock-on effect of some of Wales’ top players moving across to England is better exposure for the next generation of Welsh players in the United Rugby Championship.
“I think the positive in that is that they’re opening up space for another young hooker, another young back-rower,” he told BBC Sport.
“So I think it’s only going to probably strengthen the game in terms of bringing more Welsh players through in those regions.”
Jenkins has started all three of Exeter’s league matches this season, having led the club to a Prem final defeat by Northampton Saints in June.
But a shoulder operation after the Twickenham loss, in which Jenkins scored a try, forced him to miss Wales’ Nations Championship games against South Africa, Argentina and Fiji in July.
“It was tough in the off-season to go straight from last season into rehab, but it’s just part of the game,” Jenkins added.
“It’s probably still not as strong as my other one, so still while I’m playing I’m trying to keep on top of my sort of rehab, pre-hab stuff, but it’ll get there as the season goes on.
“Any time you have to say no for your best interest is a really hard decision to make and something that does get a lot of thought put into it.
“But I think speaking to Steve [Tandy, the Wales head coach,] and the physios and all the staff there they were really supportive and just wanted what was best for me, which was really positive for me as a player that they’ve got my best interests, especially ahead of a really big year with the World Cup at the end of the year and a lot of Chiefs honours to go for.”