They WILL care if you only have one tv, because then they ccan'tfinish the job. When you try to switch inputs on a tTV to activate a second box on the same tv, the manage clients menu closes and errors out
not if you know how to program the RC7X remotes

. some people only HAVE one TV and want 4k, so knowing how to do it makes life easier.
since you're a tech heres how to do it
step 1: power on only mini
step 2: wait for "no server detected" screen"
step 3: get remote for mini and press/hold mute+enter (not select)
step 4: wait about 5-10 seconds. remote is now programmed for mini
step 5: turn off mini
step 6: turn on genie, software download, activate as normal
step 7: program remote
step 8: add client
step 9: now your client remote wont close out the PIN screen on the genie when you press select to add receiver
The hr44 has a power inserter, the hr54 does not.<snip> . So, the upgrade requires removing the power inserter, swapping lines at the splitter to make sure the hr54 is on the DC pass through.
There is also a lnb upgrade. Some might call this complicated, but not really.
the LNB upgrade doesnt pop up on every work order (some upgrades anyway), so it may not get done.
as for the power inserter, you can disable the built in power inserter of the H44 and HR54 by putting the line on the non-power passing side of the splitter. as far as i know this is a one way process because i havent found a way to turn it back on yet. but this is good for installs where the run between the genie and splitter is 1) very long or 2) CCS from pre-wire.