Since my qualitative argument appears to be unpersuasive, I decided to go grab some numbers and see how infantry in TR and vanilla EaW compare.
My method, should you wish to replicate it, was to use FRAPS to record engagements of single unit on single unit combat and then bring that footage into a non-linear editor to glean precise timing. All times are reported in seconds and * indicates which side opened fire first. When using FRAPS on my comp there was a slight increase of lag but lag was constant during all recordings so I eliminated it as a contributing factor for time difference.
+Thrawn's Revenge+
NR Infantry* vs. Stormtrooper Infantry:
4.733NR Infantry vs. Stormtrooper Infantry*:
4.267AT-ST* vs. NR Infantry:
2.90+Vanilla EaW+
Rebel Infantry vs. Stormtrooper Infantry*:
11.40+ (Rebel infantry disengaged after losing 1 man and ST unit suffered 3 losses)
Rebel Infantry vs. Stormtrooper Infantry*:
46.233 (ST unit suffered total of 5 losses)
AT-ST vs. Rebel Infantry*:
16.433 (Rebel infantry was joined by 2 anti-vehicle units and a civilian unit [fire was constant on the initial infantry unit however]; Rebel infantry suffered 0 losses and the AT-ST was destroyed)
5 AT-STs* vs. Rebel Infantry:
29.833+ (Rebel infantry suffered 0 loses and battle was on-going after recording limit reached)
Even a brief look at the above numbers seems to show clearly that infantry offensive capability versus other infantry in TR is vastly improved while their defensive rating has been diminished substantially (in some instances almost 10x). Fire rate of all units has been increased, which in combination with lowered infantry defensive ability results in what I perceived as a loss of their holding ability. This also contributes to the far greater superiority of light/medium armor units versus infantry (citing the last case in TR and EaW; 2.90 vs. 29.833+).
Nobody has yet to convince either Enceladus or myself that any tactic is actually more effective than infantry spam.
I do not understand this then because infantry simply cannot stand up to a few armored units, let alone a concentrated force of armor. Artillery remains effective as always and I cannot see how infantry would be effective when a player has even a single artillery unit defending a location.