new gtlds Right of the dot included as keyword for appraisals/valuations.. huh?

[1NiteStand]

Hi all,

Most new (if not all) gTLD's such as .club, .online, .one., .tech., .win, .xyz. etc. are included as keywords on the appraisal/valuation tools like estibot.... how come? Should the keywords only be the left of the dot regardless of the TLD? How does this effect things?

DroneClub.com keywords are: drone club
Drone.club keywords are also: drone club

But why are the right of the dot words (club in this case) being included as keywords when .com, .net, .org, and other originals are NOT?

for example:

if Drone.club keywords are DRONE and CLUB
shouldn't DroneClub.com keywords be DRONE, CLUB, and COM ?

or the reverse,

if DroneClub.com keywords are DRONE and CLUB
shouldn't Drone.club keywords be only DRONE

Thoughts?