Is it worth moving to Meta at my current stage? (L5 to E4)

I recently received an offer to join an Ads team at Meta at E4 level. The comp was pretty much equal.

Here are some pros of my current team:

• Work life balance is great
• I've learned a lot and am still learning a decent amount
• Manager is nice

Here are the two big problems I have with my team:

• I see no path to L6. My org is very L6 heavy, and even more L5 heavy (i.e. no L4's to mentor). There are strong L5 engineers that should have been promoted long ago but are still here. They are always given the promotion level projects (despite still never being promoted).
• The projects I'm working on feel extremely useless, and there is minimal real impact that product or engineers have on the business. (Few massive enterprise customers with deal terms driving business growth over product)
  • A lot of features we build are used by tens (yes tens) of users.
  • Some of our systems are interesting and high scale (we serve content), but are heavily guarded by a group of OG engineers that don't like to involve others.

The Ads team at Meta seems bland but impactful, they have concrete incremental revenue goals and are serving a large amount of ads customers. Don't know much else. The manager seems nice and mentioned that "oncall wasn't bad".

Here's a few additional twists to my situation:

• I actually declined the Meta offer already in fear of losing my WLB, but every time I push a commit for a feature I know that at most 10-20 people will care about, I start to wonder if I should try to claw my way back towards another offer (I declined a few days ago)
• I'm possibly going to need to leave the Bay Area in August 2025 (so my tenure if I switch may be ~1.5 years, probably not long enough for promotion)

I'm trying to think of what would put me in the best situation in 1.5 years when I move and begin another job search. Hopefully I'll land in a more senior role by then.