Why is SuperMarioGlitchy4 (SMG4) rated TV-14 while SuperMarioLogan (SML) is rated TV-MA?

Why is SuperMarioGlitchy4 (SMG4) rated TV-14 while SuperMarioLogan (SML) is rated TV-MA?
Please comment of why is SuperMarioGlitchy4 (SMG4) rated TV-14 while SuperMarioLogan (SML) is rated TV-MA? Because of what?