The end result is the same and for some people that's all that matters. There's always more than one way to achieve the same goals, whether it's a handwave, a roll, or a system. The DM can always choose to roll or not roll, ignore the system or not, but for me, there is a problem when the system can and often does lead to a break in immersion. The simple poll questions shows that; include skills or not, include ability scores or not, add them together or not, everyone has a point and a preference in handling this, but none of them handle the immersion issues caused by high level play, other than to ignore it or handwave it.
I'm also perfectly content not having any skill system at all. Remove it from the game and roleplay every situation. I have no issue with this at all, as long as it is clearly defined as the method of play for the game, which no edition does (1e ability score, 2e NWP, 3e skills, 4e skills).