To add, without knowing the homepage firewall rule g2 has set up, we won't know exactly what sort of rules is triggering this, although the most likely signals they're using are either bot scores[0] or threat scores[0].
0: https://developers.cloudflare.com/bots/concepts/bot-score/
1: https://support.cloudflare.com/hc/en-us/articles/200170056-U...