I am currently in the "undecided" camp, as to which title goes in the unclued cells. Without wishing to obfuscate the issue further than is necessary, the following thoughts occur.
The last 4 words of the instruction obtained from the unchecked letters don't necessarily have to indicate one word.
The second player has to have a "shared" highlighted cell, surely, in order to satisfy the 22 stipulated by the preamble.
Therefore the title we are left with must pertain ONLY to the "second" player and the subject. Only one player is covered by both unclued possibilities and a horizontal specialism.
It has been mooted on several occasions in the past that the editors encourage these possibly ambiguous/contiguous scenarios in order to knock down the number of "corrects" arriving at AL3 6HE.