Never initiate a bitcoin transaction before you check mempool.space or Jochen Hoenicke's site.
I'm not sure why you're so ultimative. One can always bump fee, you don't risk anything. And I'm not in a hurry most of the time...

I guess his suggestion is meant to avoid paying higher fees.
Most users just use the fees suggested by the wallet. And those fees are usually much higher than those in the mentioned websites.