Ok first: I do not belive there is a problem (YMMV)
Second the truth of the math is that it changes as you go up levels.
Ok, lets break down how 4e works...
lets assume that the book is balanced for a 16 attack stat and a +2 prof weapon Vs AC, or a 16 att stat alone Vs Nads...Anything else is Bonus...
Now I am going to take the DMG info on monster building...everything for standard monsters AC lie between Level+12 and L+14...and NADS Level +12...to make an elite is +2 to three...and solo is another +2 to three...
Level 1
+5 Vs AC 13-16...up to 20 for solo need 8-11 up to 15 solo
+3 Vs NADs 13...up to 17 for solo need 10 up to 14 solo
Level 11
+3 magic... +1-2 att stat (+3 to the stat) +5 level
+14-15 Vs AC 23-25 up to 29 solo need 8-11 up to 15 solo
+12 Vs NADs 23...up to 27 solos need 11 up to 16 solo
level 30
+30 Vs AC 42-44 up to 48 for solo need 12-14 up to 18 solo
+28 Vs NADs 42 up to 46 solos need 14 up to 18 solo
Notice the swing at 30th level, from needing 8-11 to needing 12-14, well that 4 pt swong is what most people see as a problem
to show it another way
PC has +x to hit at level 1 and monster has y AC
over 30 levels the PC gains +15 (Half level) +4 (+8 to prome stat) +6 (Magic enhancement) so at 30th level he is at +x+25 but against an AC of y+29 becuse monster scale at every level.
Now as to why I do not see the problem...Well to put it blunt no one who doesn't do the math sees it in play (and by no one I mean not a noticable %) becuse as powers and items scale PCs have mor options. You see at level 30 you have 3 magic item uses +1 per milestone (2 more then 1st level) you also have 16 more feats specilizing you, a bunch of magic items, more powers that have better effects (other then damage that also scales) and you have more healing.
The numbers only take +x to hit Vs Y Ac into account, the wizard powers that do things on miss and hit the whole dang board are not calculated, or the cool PP powers thatt do things like auto damage, or bonus to hit, or free movement. Heck fighters have auto damage stances as early as 5th level, there are too many X factors for the math to take into account.
