Upon those words, unfortunately fans matter but its up to the writers who have to make the tough choices they choose which and how Pokemon is run. If you have a legitimate beef with the management of one the largest and tenured shows of the past decade something has to be the matter with you. Learn to adapt I first started watching the anime when I was 5 years old and didn't care how this show ran, now I'm 18 and still don't care because of 1 true fact I love the show no matter what happens and I am not afraid to say that.
Back on topic, I think the reason the starters didn't evolve except Tepig was to show that reserves can get spotlight as well sure some of the evolutions were rushed but look here
Krookodile, Unfezant, Leavanny
Pignite, Palpitoad, Boldore
Oshawott, Snivy, Scraggy
See the balance, 3,3,3 without the balance in evolutions some will say why is Oshawott unevolved, why isn't Pignite an Emboar yet. Writers want to make the show somewhat lax in spreading some evolutions sure some people can evolve like previous pokemon. Ash has owned like Corphish and Gible they can be marketed into fearsome terrors that little kids might not like that's why Krookodile lost Crunch.
Let there be rock
1. Charizard, Pidgeot, Alakazam, Dragonite, Snorlax and Arcanine
2 Typhlosion, Houndoom, Scisor, Tyranitar, Umbreon and Espeon
3. Sceptile, Salamence, Absol, Flygon, Metagross and Milotic
4 Infernape, Staraptor, Garchomp, Electivire, Lucario and Toxicroak
5. Samurott, Zoroark, Braviary, Krookodile, Hydreigon and Eelektross
white fc : 1592 - 4330 - 4426