Heck yeah!
The higher TDS is merely an indication of CONCENTRATION of certain dissolved solids AFTER efficient PREFILTRATION, and then REJECTION by your reverse osmosis thin-film-composite membrane stage.
It is after all, TAP water , which has been filtered, processed, and had large proportions of mineral content, rejected to "WASTE".
SO, at THIS stage alone, it's BETTER than tapwater.
This Mineralised water, is the WASTE.
SO, it is not dirty/unhealthy water, but the natural tendency to call anything REDIRECTED besides the DESIRED PRODUCT water.. WASTE!
Sure, nitrite/nitrate, phospahte, silicate, some metals may make it through..but after all that is better yet, than MINERAL water.
If you have top-grade hobby testkit, why not test for the items you can!
eg. Mg, Ca, Alk, Nitrite/ate, Phosphate, Silicate.
You can THEN picture % of each of the above as part of your TDS ( in ppm)
Or else, TDS gives no clue to TOTAL of WHICH SOLIDS are DISSOLVED.