Something more devilish is having unergonomic furniture for office work, a seat that's too hard or too high relative to the table, lighting that's more likely to create glare on a screen, etc.
Low tables and lounge-style chairs are comfortable but they can't reach anywhere near the density of the standard arrangement.
That might be ok if you're a tiny shop that only really wants to do takeaway but to me, most coffee shops are a place to relax and have a conversation with someone. A chair that becomes uncomfortable after a few minutes is in direct contradiction to that purpose and indicates either hubris or ignorance on the part of the owner.