Should Passive LPF/HPF Component Selection Depend on Ability of Input to Source Current?
Not really.  It's the load impedance as a whole that matters.
For example:





Network 1 has a DC input impedance of 10.1k and network2 has a DC input impedance of 11k.
For your 3.3v input that makes a difference of \$i=\frac{3.3v}{10.1k} = 326uA\$ for network 1 and  \$i=\frac{3.3v}{11k} = 300uA\$ for network 2.

So if your load impedance is sized correctly, then the LPF impedance will have minimal impact on current draw.