I feel like your reaction to this depends a lot on:

1) Your feelings about Tim Drake as a character.

2) Your investment in Tim and Steph's relationship.

3) Whether you saw the same perceived subtext in Tims' relationship with male friends that others did.

4) Whether you relate to Tim more as a queer character compared to as a purely straight character (and may be more invested in focusing on his queer relationship than his straight relationships).

5) Whether you just want more sexual diversity in comics in general.