[antonvs]

> I'd love for research to be more balanced since the phenomena can be explained through more hypothesise than just increased mass.

I'd love for climate science research to be more balanced...

Seriously, the "balance" tends to fall towards the theories that have the strongest indications of being on the right track, and that's what's happened with dark matter.

In the video on the only non-dark-matter theory that you linked, MOND, it is pointed out that MOND is known to be wrong, and is considered to at best be an approximation to an unknown theory of modified gravity. MOND itself also has no real theoretical justification, i.e. no explanation for how or why the gravitational equations should be modified.