For me it matters too. After all it is my work and what i work on all day long...
But homeworld textures are not horrible, they are low res by now standards but still with an awesome art direction that got blandly copied again and again afterwards by most scify space ops...
I would personally feel more the need to upgrade 3D models for third person or first person games, which are the ones aging the most... It is not a secret why it is easier to play to an old 4X like MoO graphics wise than a thing like fallout... Imo.
Edit : to clarify i am very happy to see that game getting a bit of cosmetics added to the true additions like working on current systems, but it seems to be thing these days to 'remaster' games by just making them available on steam or whatnot and charging the customer full price for that... GoG does it for ridiculously low amounts of money and i am certainly not going to praise gearbox until i see their price. My gripe is that in its current state, loking a lo better than the original or not, it just look like what any serious mod would do to a game... I generally would expect a remastered version done by a professional studio to bring more than that, like new camera controls ( which was terrible in HW1), UI tweaks up to today standards, etc. Then we would be able to actually criticize in a good or bad way, compare to the originals...