Nobody says they can’t, just that implying Dash as a lesbian just because she’s a tomboy seems improper to the show and Faust thinks about certain stereotypes.

Tomboys can be lesbians too, you know.

@Barhandar  
Karma

What makes this even funnier is seeing Haber e-beg for a job on twitter.

@legion2709  
Which still does not actually say she is

@Background Pony #14A5  
Yeup! But for some reason, this didn’t stop John Haber from making a big hint about their possible relationship

@legion2709  
and the show never said she’s a lesbian

@Background Pony #BCDC  
She can’t be a lesbian because the lines in her mane are straight)

She could be Bi/Pan though…

@Background Pony #14A5  
the show never teased or hinted her being gay until the very last episode which came out of nowhere, happened for no reason than for the sake of subverting our expectations, and goes against the creator’s vision for the characters. here is a quote from Faust herself:
 
“Rainbow Dash has rainbow-striped hair because of her name and because she is very interested in sports, specifically flying. She is a tomboy, but nowhere in the show is her sexual orientation ever referenced. As we all know, there are plenty of straight tomboys in the world, and assuming they are lesbians is extremely unfair to both straight and lesbian tomboys. There are lots of different ways to be a girl. You can be sweet and shy, or bold and physical. You can be silly and friendly, or reserved and studious. You can be strong and hard working, or artistic and beautiful… There is a diversity of personalities, ambitions, talents, strengths and even flaws in our characters.”
 
to say a boyish girl who likes rainbows must be gay or trans is extremely close-minded and ignorant. and the final episode is insulting for making her gay simply because of these stereotypes.

Remember what they took from you.

@Background Pony #7F8A  
Transgender (Female To Male)

What’s FTM?

This would make so much more sense if The episode actually confirm her as a lesbian not slightly teased it

Ok, I sort of understand this.

The terrible Tribulation of the Tomboy Girls is truly a tragedy.

The entire 9 season in one picture