True. But do not put the cart before the horse. Because of a preconceived belief in ontological materialism, do not restrict free scientific enquiry.
In this matter it is instructive to read Steven Weinberg's 'Against Philosophy' from his book 'Dreams of a Final Theory'.
in his view, the influence of philosophy has not only been ineffective, but actually pernicious for the advancement of science: mechanism, positivism, and relativism. Clinging to any of these world views will not allow free query. I reproduce a part of what he says:
So, actually without fresh philosophical queries, science would not progress. You may wish to read what an eminent scientist says about this:
Physics Needs Philosophy / Philosophy Needs Physics
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So, please let us focus on why Andrei Linde proposes what he proposes. Have you read in Andrei's paper the implication of Wheeler-DeWitt equation on evolution of universe as a whole?