Not everyone, just the really small S9 miners trying to capture heat etc. Really, anyone with a 1year or longer payout to avoid relative % pool withdraw fees would probably opt for lightning option. No? I don't see why anyone in that position wouldn't.

I run an S9 at ~7TH/s to heat a big bathroom in our house. With Braiins. With 100,000 sats reward I would still pay a 10,000 sat fee to withdraw. That might not even include network fees? I'm not sure. But anyway, that's about 4 months to get to 100k sats. I may as well wait as long as possible before paying the 10k fee. Plus I only use this S9 in winter, so realistically I won't bother asking for payout until April 2025.

But yeah, if your reward is 1M sats per month, I guess you don't care about 10k sats. Fair.