Personally, I wouldn't come out with smart alec comments about another professions performance whether I was just about to have my appendix out and suggested to the surgeon how much aneasthetic I should have or I was on a visit to a ATC unit and leaned over the radar directors shoulder and suggested he could have got the Easyjet 73 in a bit closer behind the British Airways shuttle.
Firm landings are the norm and how it should be done - smooth landings are a bonus.