MP did not clear up for many days, but there were plenty 1-sat TXs in many blocks in the recent days.
The fee range of recent blocks is a more important metric than just the MP depth.
Discussion
I did a transaction 3 days ago at 1.7 and it cleared in a few hours.
I did a transaction yesterday at 3.08 sat/vb, and it cleared in about 30 secs!
Not only was I very lucky that a new block was just mined, but also I was lucky to guess the minimum fee of that block B)
I think I never was so locky with a tx in my life :DDD