Video games work differently than table top games
Surface spam is a stupid gimmick.
...have you ever played DOS2? This is non-existent comparatively. Also, as a DM, a lot of players crave using surfaces and grease fires and all sorts of stuff. I think its a good way to introduce spell combos in a way you just never get to in TT because the rules dont allow for it. If you look realistically at most fights its Swing/miss/stay, shoot/hit 4/move 5 feet, swing/miss/stay, enemy swing/half damage on barb/stay, enemy multi/miss/hit/stay, sacred flame/miss/stay move 10 feet
Its fun in the meta of resources and your journey and seeing new creatures and new terrains. But translating the level of simplicity and almost 0 synergy players have with one another other than guiding bolt, its probably beneficial to bring environment more into play in a way that is hard for DMs to build or manage on a battle map - especially given how much time we have to actually make all the terrain and come up with random encounter maps and all that stuff. It explores some concepts a bit more, and game companies have been doing grease fires forever even though no edition I know of has grease as flammable. If it was DOS2 Id nope out of this, but I dont feel its unwieldy or unmanageable yet.
my 2c of course