The Daunting Ritual - Adventure Turn-in

After looking through the stat blocks of the vine encounter, a concern I had voiced in how the initial encounter was DMed turned out to be true. During the middle of this encounter Citrine Misty Stepped 30, then moved 40 more upwards, 70 feet off the ground. She was still attacked by three separate creatures. When asked to confirm they could indeed hit someone 70 feet up, was told yeah they could. I went with it, not one to question how a DM is playing a creature. It very easily could have been a custom monster! Especially at level 7. Seemed legit.

The statblocks presented show they are all blind past 60 feet, and none have an attack radius close to 70 ft; the biggest being the Needleblight's 30/60, where disadvantage would have been given shooting within 60 feet. 70 is out of that range. I'd like a higher XP considered for this encounter if possible. Not upset, I survived, obviously, but the encounter was run at a much higher CR, which then affected how resources were used from then onwards.

Thank you