Several Moscow 42 Questions

[76mm]

A couple of questions about two alternate rules:
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Alternative Direct Fire Resolution
Direct Fire and Indirect Fire of mortar or heavy weapon units is conducted under different rules. Although a target may be selected, under this rule, if the target unit is not a Hard Target, then the resulting fire is dispersed and affects the other units in the target hex, so the more soft units you have stacked in a hex the greater your losses will be, the fact you cannot target an individual soft units could be seen as more realistic.
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While this rules says that a target MAY be selected, in my experience you MUST select a target. If the fire actually affects all the units in the hex, why do we need to bother to select a target? Alternative Indirect Fire works in the same way, but we don't have to select a target unit. Am I missing something?

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Delayed Disruption
Delayed disruption does not guarantee you will not see the defender disrupt, sometimes you will see the disruption as in standard game play, sometimes it will be hidden. This OR was added because it was deemed to easy for an attacker to know exactly when to launch an assault, with this OR on some guess work will be involved.
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This rule says that sometimes I will see disruption as in standard play, but in fact in more than 60 turns of M42, I have yet to see an enemy unit disrupt before my eyes. Again, am I missing something?