Lupin (dec 2005) amended- tax benefit

The scenario is:
“On 1 November 20X3, the company had granted ten million share options worth S40 million subject to a two-year vesting period. Local tax law allows a tax deduction at the exercise date of the intrinsic value of the options. The intrinsic value of the ten million share options at 31 October 20X4 was $16 million and at 31 October 20X5 was $46 million. The increase in the share price in the year to 31 October 20X5 could not be foreseen at 31 October 20X4.The options were exercised at 31 October 20X5. The directors are unsure how to account for deferred taxation on this transaction for the years ended 31 October 20X4 and 31 October 20X5.”
In the model answer there are statements that: “The deferred tax asset is $2.4 million (30% x 8). This is recognised at 31October 20X4 provided that taxable profit is available against which it can be utilised. Because the tax effect of the remuneration expense is greater than the tax benefit, the tax benefit is recognised in profit or loss.(The tax effect of the remuneration expense is 30% x $40 million / 2 = $6 million.)”
I do not understand the statement:” Because the tax effect of the remuneration expense is greater than the tax benefit, the tax benefit is recognised in profit or loss.”.? And if the tax effect of the remuneration expense is not lower than the tax benefit, the tax benefit should not be recognised in profit or loss?