Did the soccer stadium in Orlando who made a section of seats rainbow colored donate anything to the tragedy? Money isn't the only way to show support or help a community.
I live in the Boston area and I was at work in the city on the day of the Boston Bombing. Our team had "Boston strong" and something about "this is our city" (David Ortiz reference) in our music the next year. New England teams all got Boston Strong shirts in Daytona that year. No, we didn't raise money for the One Fund as a team, but we as a community were definitely shaken by the events (I don't think I owe it to anyone to describe my feelings being in the city that day) and wanted to show support for our city. And I know that I, personally, had donated to the victims and so had many of my teammates.
Maybe Rebel shouldn't have put their logo on the Rs, but maybe they're just showing their support as well. Maybe they cut the team a deal on the uniforms. Maybe they didn't, but putting "Orlando Strong" on a uniform doesn't scream philanthropy to me.
Why is it so wrong that a gym in a community that dealt with a tragedy would want to honor the victims or their community? I'm proud of the way our area came together after that tragedy and I'm sure TG is as well.