Considering I love the timeline and the entire Hyrule Historia, sure. That sounds great, honestly. I know it sounds like I'm being contrarian for the sake of it but that really is my honest opinion. The VII/X and the Tactics/XII connections are some of the coolest things in the FF series. It makes the worlds feel more realized.
Lol, no worries, it's perfectly fine to have a different opinion from mine.
I personally do not like afterthought universes because it can potentially lead to a lot of retcons, inconsistencies (for example, if VII is the same universe as X, how come the whole concept of summoning is entirely different?), sometimes the gaps are filled with less than stellar ideas, and the worst offender: it can limit creative freedom because now you have added a ton of constraints on top of your game.
All of the concerns mentioned above have solutions, but they can be very hard to address, and it probably can not be done without angering/alienating part of the fanbase.
Just look at the story and writing in Dissidia, which semi joins the FF worlds.